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Influence of TiN Particles on Dynamic and Static Recrystallization in Microalloyed Steels

AuthorsMedina, Sebastián F.; Vega, María Isabel; Gómez, Manuel
KeywordsDynamic recrystallization
Energy activation
Micro-Alloyed steel
Static recrystallization
Issue Date2004
PublisherTrans Tech Publications
CitationMaterials Science Forum 467-470 : 1205-1210 (2004)
AbstractThis work has studied the influence of different Ti and N compositions on hot deformation strength by determining the peak stress of flow curves and the activation energy (dynamic recrystallisation). It has also assessed their influence on static recrystallisation by means of the statically recrystallised fraction versus time and the activation energy. A precipitate study performed by SEM and TEM has yielded a better understanding of the influence of the Ti/N ratio and precipitation state in hot deformation (dynamic and static recrystallisation). A correlation was found between for the finer distribution of precipitates, Ti/N ratio close to 1.5, smaller austenite grain, maximum activation energy for hot deformation (dynamic recrystallisation) and maximum activation energy for static recrystallisation.
Publisher version (URL)http://dx.doi.org/10.4028/www.scientific.net/MSF.467-470.1205
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